Lawn sprinkling nozzles



June 1959 J. T. CLARK 2,892,594

LAWN SPRINKLING NOZZLES Filed March :5, 1958 INVENTOR.

JAMES T. GLA RK AT ORNEY United States Patent 6 2,892,594 7 LAWN SPRINKLING NOZZLES James T. Clark, Fort Morgan, Colo.

Application March 3, 1958, Serial No. 718,660 2 Claims. or. 239-280) This invention relates to a lawn sprinkling nozzle of the set type and has for its principal object the provision of a lawn sprinkling nozzle which can be rapidly and economically manufactured; which will effectively withstand the abuse to which such sprinklers are subjected; which will tend to sprinkle a substantially rectangular area; and which will be adaptable to series connections to enable a plurality of improved nozzles to be placed at spaced intervals along a continuous hose.

Other objects and advantages reside in the detail construction of the invention, which is designed for simplicity, economy, and efficiency. These will become more apparent from the following description.

In the following detailed description to the invention, reference is had to the accompanying drawing which forms a part hereof. Like numerals refer to like parts in all views of the drawing and throughout the description.

In the drawing:

Fig. 1 is a plan view of the improved nozzle;

Fig. 2 is a side view thereof;

Fig. 3 is a longitudinal section, taken on the line 3-3, Fig. 1;

Fig. 4 is a cross section, taken on the line 4--4, Fig. 3;

Fig. 5 is a horizontal section looking downwardly on the line 5-5, Fig. 3;

Fig. 6 is a detail view illustrating an orifice disc employed in the improved nozzle;

Fig. 7 is a similar detail view illustrating a conical jet plate employed in the improved nozzle; and

Fig. 8 is a diagrammatic view showing the type of spray produced by the improved nozzle.

The improved nozzle comprises a hollow body portion 10 having an internally threaded hose coupling sleeve 11 at one side and an externally threaded hose coupling nipple 13 at the opposite side. The sleeve 11 is provided with internal hose threads 12 and the nipple 13 is provided with similar external hose threads 14. A screen shoulder 15 is formed in the sleeve 11 against which a circular filter screen 16 is retained by means of a sealing washer 17.

A circular discharge passage 18 is formed in the top of the body portion 10 surrounded by a circular upstanding protecting flange 19. A vertical post is formed, or mounted, on the bottom of the interior of the body por tion 10 and arises concentrically of the passage 18 and of the circular flange 19. A vertical post 20 is formed, or mounted, on the bottom of the interior of the body portion 10 and arises concentrically of the passage 18 and of the circular flange 19 to a point substantially in horizontal alignment with the upper edge top of the flange. The post 20 is formed with an intermediate reduced diameter portion 21 forming a shoulder 22 thereon and with a terminal, still further reduced diameter portion 23 forming a second shoulder 24 thereon.

The first shoulder 22 is in horizontal alignment with an annular seat 25 formed in the bottom of the circular flange 19 and upon which a circular orifice disc 26 rests. A circular conical jet plate 27 rests at its periphery upon 2,892,594 Patent ed June 30, v 1959 ICC the orifice disc 26 and is locked in place thereon by means of an in-turned annular edge 28. The jet plate 27 is provided with a central jet opening 29 of larger diameter than the intermediate portion 21 of the post so as to form an annular discharge port about the post.

The orifice disc 26 is provided with four orifices 36 positioned at 90 spacing and so positioned as to direct water streams against the conical bottom of the jet plate 27.

A circular distributing button 30 is fitted over the upper extremity of the post and against the shoulder 24 and is riveted in place thereon by upsetting the reduced portion 23 of the post. The button 30 is formed in the shape of an inverted cone so as to provide an upwardly and outwardly inclined annular lower surface above the jet opening 29.

The body portion 10 is formed with three lugs extending downwardly from the bottom thereof designated as a central locating lug 31 and two oppositely positioned locking lugs 34. These lugs are designed to pass through receiving openings in a base plate 35 from which a plurality of supporting legs 32 project to support the sprinkler on the lawn with the post 20 in a vertical position. The base plate 35 is secured to the body portion 10 by upsetting or riveting the extremities of the side lugs 34, as shown in Fig. 2.

When the nozzle is used as a single nozzle on the extremity of a hose, the nipple 13 is closed by means of an internally threaded removable cap 33. If a plurality of these nozzles are to be used in series, the caps 33 of the intermediate nozzles will be removed and short sections of hose positioned between the adjacent nozzles by threading the female couplings of the hoses onto the nipples 13 and the male couplings of the hoses into the threads 12 of the sleeves 11, the final nozzle of the series being closed by its cap 33.

It can be seen that with the orifice discs 26 drilled as shown in Fig. 4, four strong streams of water will be projected upwardly against the bottom of the jet plate 27. The water will then discharge upwardly in an annular jet around the post 20 and against the bottom of the button 30 and thence outwardly and upwardly in a spray 37 completely surrounding the sprinkler. The four orifices 36 in the disc 26 create four spaced streams 38 of stronger water flow in the spray, as indicated diagrammatically in Fig. 6. These four stronger streams or portions throw the water further at intervals so as to tend to form a rectangular spray area as indicated in Fig. 7.

In order to prevent water from accumulating in the circular flange, a drain hole 39 is provided which allows accumulated water to continually drain from the flange.

While a specific form of the improvement has been described and illustrated herein, it is to be understood that the same may be varied within the scope of the appended claims, without departing from the spirit of the invention.

Having thus described the invention, what is claimed and desired secured by Letters Patent is:

l. A lawn sprinkler comprising: a hollow body portion having a closed bottom and a circular water discharge passage in its top; a hose nipple communicating through the side of said body for supplying water to its hollow interior; a post mounted on the closed bottom of said body portion and extending upwardly therefrom concentrically through said passage; an annular shoulder surrounding said passage; a fiat, circular orifice disc, provided with four equally-spaced water discharge orifices, resting upon said shoulder and extending across said passage about said post; a frusto-conical, annular jet plate resting at its periphery upon said orifice disc, said post extending upwardly through an axial opening in said jet plate to a termination above the latter, said axial opening having a larger diameter than said post so as to outline an annular jet opening about said post; a water distributing button, having a conical lower surface, concentrically, horizontally, and fixedly fitted over the upper extremity of said post above said annular jet opening; an annular, inturned edge formed on said 'body portion above and about the periphery of said jet plate and acting to hold said jet plate against said orifice disc and the latter against said shoulder; and a cylindrical, up-standing flange formed upon said body portion about said discharge passage, the top of said flange terminating substantially in horizontal alignment with said button and with the upper extremity of said post.

2. A lawn sprinkler as described in claim 1 having lugs formed on and extending downwardly from said body 4 portion and a supporting base, said base having openings receiving said lugs, said lugs being upset in said openings to retain said base in place.

References Cited in the file of this patent UNITED STATES PATENTS 518,560 Black Apr. 17, 1894 980,538 Leopold Jan. 3, 1911 1,036,046 Whittier Aug. 20, 1912 1,165,240 Gault et al. Dec. 21, 1915 1,181,145 Larson May 2, 1916 1,667,943 Munz May 1, 1928 1,881,409 LeMoon Oct. 4, 1932 2,446,918 Goddard Aug. 10, 1948 2,527,950 Maness Oct. 31, 1950 

